Type-writer attachment.



0. H. KRUEGER.

TYPE WRITER ATTACHMENT.

APPLICATION FILED JULY 9. I91],

Patented Nov. 19, 1918.

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WITNESSES. W

OTTO H. KBUEGEB, OF LOS ANGELES, CALIFORNIA.

TYPE-WRITER ATTACHMENT.

Specification of Letters Patent.

Patented Nov. 19, 19 18.

Application filed July 9, 1917. Serial No. 179,410.

To all whom it may concern:

Be it known that I,- O'rro H. Knnnonn, a subject of the Emperor ofGermany, re-

' siding at Los Angeles, in the county of Los Angeles and State ofCalifornia, have in vented a new and useful Type-Writer Attachment, ofwhich the following is a specinew paper to be copied from the original.

Another object is to provide means by which the original paper isshifted automatically with the paper shifting mechanism on a typewriter.

Another object is to hold the original paper free from and above thepaper written on the typewriter and copied from the original paper. 7

Another object is' to provide shifting mechanism on the attachmentsimilar-t0 the shifting mechanism on the typewriter so-as to allow theshifting of the original paper above the newly written paper inaccordance with the advancing of the newly written aper separate fromthe shifting of the newly written paper, shifted by the mechanism of thet pewriter.

Another ob ect is to cover the writing of the original pa r except for asuitable number of wor so as to make it easy to compare the words ofjheoriginal paper with the words of the newly written paper.

Another object is to providescales near the words of the original paperand similar scales near the words of thenewly written paper so as toautomatically check up the letters, figures and spaces of the originalpaperwith the letters,'figures and spaces of the newlywritten paper tothe minute fragmentary perspective view Other objects will appear fromthe following and accompanying papers.

In the drawing Figure 1 is a front elevation of an assembly of mydevice.

Fig. 2 is an end elevation of the device in Fig. 1.

Fig. 3 is a fragmentary line 3-3 of Fig. 1.

Fig. 4 is a fragmentary elevation of the frame with roller engagingmechanism.

Fig. 5 is a detail side elevation of the sectional view on spring forholding the reading plate andchecking plate in a desired position, to besecured to the main frame 5.

F 1g. 6 is a fragmentary perspective view,

illustrating the engaging of the lower ends of the main frame over theshaft of the platen, such shaft and platen as well as a of a typewriterbeing shown in dotted lines.

5 designates the main frame suitably shaped at its lower end 6 to engageover the shaft 7 of the main roller 8 in a. typewriter 52, and alsoconstructed to allow the attachment of suitable extra plates 9 to makethe frame applicable to the different makes of typewriters. In Fig. 2,the lower end 6 of the main frame is formed hooklike to hook over theshaft 7 of the typewriter-roller 8 from the front, the extension end 10projecting toward the rear of the typewriter having a suitable number ofthreaded holes 11 for screws. by which in combination with the smallplate 9'tl1e main frame 5 is secured to the typewriter. The plate 9 isprovided with slots or notches 12 allowing a shifting in a suitabledirection to bring the slot, notch or cut out 13 close to a rod 51 orsuitable screws on the typewriter thereby locking the plate and there'-with the main frame 'to the typewriter, as will easily be understood,there being always rods or screws rearwardly of the main roller orplaten within the frame work of the typewriter. And it will also easilybe understood that other means may be used as long as the frame 5 canthereby be held on the typewriter in a similar manner.

A rod, as indicated at 51 in Fig. 2, is on certain types of Underwoodtypewriters a short distance behind the platen parallel to mswrltioss mols or a reading plane '23 is swingsbly mounted i some film roller 15.The reading ols'lo is moss provloe with slot of sullaols Widthand lengthto show jusa ills (leslrocl somber of morals or figures so as lo molasll; easy to sss few W ls or figores with the and figulos'appaaring onthe newly paper on the main rolls-1 8 the lm tewmlsr. To makeclloolzl'og' oasis? long s 25 is provided above roller 8 hanging downovo'r rolls? 8 so as to Sll-OW just one line or on sills? suitable nicerof lines which can and qulcl v be read composed oml be o typos or makesoi st other means loo 10 g l l l l l I With Th wowls see ll'iolllll Cosslol; 2% in Foo l ls "Writing and pops? on the 11 the scales 2 1min llQl8 sh wing same letter or figure onti 11g seals-mmks. ms the ID-il 4.1case film tb cooy to be made, is to loo 1 orlor lines than the originaler orlgmsl pooor naturally should l: o be smiled at ills some momentwhen the from below OVEIL K s o Written paper is ine ends lows lSllQil;illQ I8 I I'Ov'lilB olseogoglmg s s msolmni Ling he soloing rollers 151: ends l6 e mail; ZDllfil 8 allowing the l lfilifil 8 to 5mm in theusual man er,

Di A Well known mechanism 1 JGBWTllsol-l able ass mos, ors not shown inone drawing wlole the lPlDB'fS to suit l Y g rollols l5 and-16 areturned by on r riters, "mll easily be uncle?- moolmnlsm Wllsns'vsr allWords slmpoal ends 6 con aland sgures of longer as of ills original 1 fr x x w 1- 01' she platen are COPlBi ov-sr to toe newly wmllsn m EQlli'8. in l 11 l L, sioss or galusws rs smlizo'oly provided in fool isms forfills llOlCll roller l5 o1 this roller manually, ZOllfil'S l5 theslaofts 04 and co s-slim lover 30 and mlollsb oo'l loo rollers mainroller so 'ofio 1 we mtmol; Wlififil 32 for The blank in position so asto show glnal paper witlllo the plate 23. Sllfill estab- 1 '1 .1 l, :0usual manner, man Loo loloel ol 9 u L 11ml s as to so node, is i loglower 3% IQWBllBlZ pawl 31, of course over is rooor l6 SBIV'BS 121 onlywhen lllfi rollers min the ratchet as Sllllll transmitter all /oesl havebeen brought to the upper 'ooslme ism only. no; as osscno d above While,the rollsTs in soouzscl m", lo o son 21 posltl 'lng their rotatingmotion {ll so guess or member 2:2, molds p the mom olstenq the ratchet15 121ml 16 pressed tome bslow tho l3] s short I lover anal ratchet pawllo snorlower posl'il .1 of rollers anal ratchet g s main roller to u slas will easily be understood.

the 8 from The "roller lo W o fill? 33 is "bum finlsllsllino to s linooslow the Elem: l3 mounted in ms lower ends o @lLB i' mo oousos alsorollers 15 disengaging 35. The shall; 29 of Ems llor clls' 'ancs so asb1 M sol sr l5 and ms sz'lsnslon smls 36 of tho Loading is 23 areslicllngj mooolzszl in lssngfoging original paper on about the middle ofthe slidingly mounted in the slots 14: of the.

main frame 5. To disengage the holding rollers 15 and 16 from the mainroller 8 for the, purposedescribed above, the disengaging frame 35v islifted until the catch 39 engages the frame 35 holding theframe in thissuspended position. The catch 39 is swin'gably mounted on the main frame5 by the pin plate 40.

As soon as the catch is released, the disengaging frame 35 is pulleddown into its engaging position in relation with the main roller and theholding'rollers 15 and 16 by the springs 19, as described above.

If the reading and checking plates are: not desired close to therollers, they can be set by suitably shaped spring members45,havingsuitably shaped recesses 43 and 44, allowing a setting of theplates from the lower position 41 to the upper position 42 just asdesired.

Such spring members can. easily be at-- tached to the frames close tothe edges of the reading and checking plates, as will easily beunderstood. 7 a

Having thus described my invention, I claim:

1. In a copy checking device of the class described a frame having meansfor removably engaging the shaft near both ends of the main roller orplaten of a typewriter and projecting from such engaging points radiallyin relation to the platen, both ends of the frame having slots extendingfrom near the engaging points to a suitable extent radiallyjn relationto the platen, and copy holding rollers turnably disposed within theframe and engaging with the slots for sliding movement radially inrelation to the main roller or platen, the longitudinal axis Itypewriter.

of the copy to the axis of the platen.

holding rollers being. parallel 7 2. In a copy checking device of theclass described a stationary frame having means for removably engagingthe shaft'near both" endsof theplaten of thetypewriter andhaving slotsfrom near the engaging points extendingto a suitable extent radially tothe platen'forming the stationary frame for the copy checking device,copy holding rollers having shafts dieposedthrough the slots in thestationary ame, and a movable frame having slots parallel to the slotsin the stationary frame for slidingly engaging over the shafts onthe-cop holding rollersadapted to hold the copy olding rollers out ofengagement with the platen of the 3. In a copy checking device of theclass described a frame comprising two parallel guide members eachhaving a guideway parallel to a guideway in the other, copy-holdingrollers turnably'and slidingly mounted in the guideways of the, frame,the frame having 'also means for removably engaging a typewriter atany'suitable point for bringing the guideways in the frame into radialrelation to the axis of the platen of the typcwriter, the guidewaysbeing of suitable length and design to allow oneof the copyholdingrollers to rest on the platen of the typewriter arallel to the platenand a1- lowing anot er roller to rest on the first vnamed rollerparallel to the firs't' named roller the guideways also adapted to allowa shifting of the copy-holding rollers to a suitable extent to be out ofengagement withthe platen. I

In testimony whereof I have hereunto set I my hand at Los Angeles,California.

OTTO H. KRUEGER.

In presence of- H. BRINCKY, L. G. EbwAnns.

